The question for Philly is... who else rounds out the roster? As it stands right now, they only have 3 players under contract. If they sign PG and Maxey (which is obviously going to happen), they're pretty much at the cap. They should still have their MLE at that point to sign another solid player, but then the rest of the roster is going to basically be vet min. guys. With Embiid and PG's shaky injury history, they could be in big trouble if one of them goes down.
But as far as fit... I agree. PG next to Maxey and Embiid is nice if they stay healthy.